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Introduce a new type MaybeUnreflectedDom<T> (fixes #25701)

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This commit is contained in:
Anthony Ramine 2020-02-17 10:17:47 +01:00
parent 3475790fc2
commit 14846d0567
8 changed files with 120 additions and 80 deletions
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33
components/script/dom/bindings/trace.rs
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@ -910,35 +910,6 @@ impl RootedTraceableSet {
}
}
/// Roots any JSTraceable thing
///
/// If you have a valid DomObject, use DomRoot.
/// If you have GC things like *mut JSObject or JSVal, use rooted!.
/// If you have an arbitrary number of DomObjects to root, use rooted_vec!.
/// If you know what you're doing, use this.
#[derive(JSTraceable)]
pub struct RootedTraceable<'a, T: 'static + JSTraceable> {
ptr: &'a T,
}
impl<'a, T: JSTraceable + 'static> RootedTraceable<'a, T> {
/// DomRoot a JSTraceable thing for the life of this RootedTraceable
pub fn new(traceable: &'a T) -> RootedTraceable<'a, T> {
unsafe {
RootedTraceableSet::add(traceable);
}
RootedTraceable { ptr: traceable }
}
}
impl<'a, T: JSTraceable + 'static> Drop for RootedTraceable<'a, T> {
fn drop(&mut self) {
unsafe {
RootedTraceableSet::remove(self.ptr);
}
}
}
/// Roots any JSTraceable thing
///
/// If you have a valid DomObject, use DomRoot.
@ -957,12 +928,12 @@ unsafe impl<T: JSTraceable + 'static> JSTraceable for RootedTraceableBox<T> {
}
impl<T: JSTraceable + 'static> RootedTraceableBox<T> {
/// DomRoot a JSTraceable thing for the life of this RootedTraceable
/// DomRoot a JSTraceable thing for the life of this RootedTraceableBox
pub fn new(traceable: T) -> RootedTraceableBox<T> {
Self::from_box(Box::new(traceable))
}
/// Consumes a boxed JSTraceable and roots it for the life of this RootedTraceable.
/// Consumes a boxed JSTraceable and roots it for the life of this RootedTraceableBox.
pub fn from_box(boxed_traceable: Box<T>) -> RootedTraceableBox<T> {
let traceable = Box::into_raw(boxed_traceable);
unsafe {